Screw-closure for bottles and other receptacles.



witnesses .7. Y 6% A. WILZIN.

SCREW GLOSURE FOB BOTTLES AND OTHER REOEPTAGLES.

APPLICATION FILED 00T.11,1907.

Patented 001]. 18, 1910.

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A. WILZIN. SCREW CLOSURE FOR BOTTLES AND OTHER REOEPTAOLES. APPLIUATIONFILED 0OT.11,1907.

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SCREW-CLOSURE FOB. BOTTLES AND OTHER RECEIETACLES.

Specification of Letters Patent.

Patented Oct. 18, 19m.

Original application filed February 6, 1907, Serial No. 355,986. Dividedand this application filed October Serial No. 397,006.

To all whom it may concern:

Be it known that I, ARTHUR WILZIN, a citizen of the United States, and aresident of Paris, France, have invented certain new and usefulImprovements in Screw-Closures for Bottles and other Receptacles, ofwhich I tures of the bottle or other receptacle whereby the samecooperates with the cap.

The present application is a division of another "application filed byme in the United States Patent Oifice on February 6, 1907, Serial No.355,986, which has ma use into United States Patent 937,401 datedOctober 19, 1909 in said earlier application I have claimed an im rovedmethod of screw-capping bottles an other receptacles.

In the accom anying drawings, Figures 1 and 2 are vertical sectionsillustratin one form of my cap and the manner of app ying' it to areceptacle. Figs B and 4 are respectivelya vertical section and anelevation showing another form of my screw cap. Figs. 5, 6 and 7 arerespectively an elevation, a vertical section on line AA of Fig. 5 and apartial horizontal and greatly enlarged sectionon line BB of Fig. 5,illustrating a third form of my invention; Fig; 8 is an elevation ofthebottle neck used in connection with the cap shown in Fi s. 5, 6 and 7.Fig. 9 shows the same bott e neck with thefcap shown ready forunscrewing. Figs. 10, 11' and 12 illustrate still another form of myinvention, Fig. 10 being an elevation of the bottle neck with the capapplied, Fig. 11 a vertical section of the two, and Fig. .12 anelevation of the bottle neck alone Figs. 13,514 and l5 represent afurther construction, Fi 13 showing bottle andcap in elevation, ig. 14Lin vertical section and Fig. 15 being an elevation of the bottle neckalone. Figs. 16 and 17 are an elevation and a plan view respectively ofa form of screw cap provided with longitudinal (vertical) ribs or folds,and Fig. 18 shows this cap applied to a bottle.

perfectly after filling the bottle, the y The neck of the bottle, jar orother receptacle a, that is the part adapted to receive the annularportion or flange of the cap, is provided with a screw thread I).Adjacent to the threads of this neck I slide or slip axially a cape theflange of which in the form of my invention shown in Fig. 1 is plain orsmooth so that it need not be turned relatively to the bottle to bringthe cap home, with the packing disk Z (of cork or other suitablematerial) engaging the mouth of the receptacle. Pressure is exertedlongitudinally or axially by any well-known or approved mechanism tohold the cap firmly against the bottles mouth and insure a tight joint.Then, while the, ca is so held, it is forcibly-pressed im ward y anysuitable mechanism, so as to cause the flange of the cap to mold itselfperfectly. against the screw thread I). An example of a mechanismsuitable for this purpose has been indicated in Figs. 1 and 2 andconsists of 'aws or rolls 6 provided with elastic v(rub er) facings jwhich become deformed under pressure as shown in Fi 2 thus making thecap conform closely ea in the same manner wil complete the shaping ormolding of as above described the screw thread on the cap to fit'exactlythe threaded portion 6 of the receptacle.

I prefer to lock the'cap against rotation relatively to the bottlebefore or while exerting the inward pressure to mold the flange of thecap to the screw threads of the bottle. This locking may be accornplished in various manners. For instance, as shown in Figs. 3'and 4 andalso in Fig. 18, the bottle or other receptacle a may be provided with anotch it below the screwthreadedortion b to receive a tongue 9 projectedrom the lower edge of the cap. 01', as shown in Figs. 5 to 9 the bottleneck a may have a screw thread k notched or inthe tongue obviously neednot project down- Wardly beyond the fla-nge of the cap, but I prefer todo this to enable the tongue to be more readily grasped and bent upwardwhen it is desired to release the cap so that it may be turned to openthe receptacle. To faciliate this manipulation of the tongue, I mayprovide a weakened horizontal line m at the upper attached end of thetongue and also, if desired, weakened vertical lines j at the sides ofthe tongue, so that the latter may be broken off enti'ely, as shown inFig. 9. It will be observed, however, that in any event the upperportion of the cap flange, adjacent to the bottom or disk of the cap, iscontinuous so as to give it the strength and elasticity required to holdthe cap in tight engagement with the receptacle along all points of thecircumference. This remark also applies to the construction of thelocking means illustrated by Figs. 10 to 15. Here the locking element orsurface provided on the bottle a below the screw thread 6 consists, notof a notch, but as an equivalent, of a projection k adapted to beengaged by a concave, portion or recess on the .tongues g or grespectively. In these two constructions, instead of the merely weakenedlines 7' of Figs. 5 and 7 I have provided slits or incisions 7' so thatthe sides of the tongue are perfectly free, its upper end being attachedto the cap flange along the weakened line m.

The preferred form of my cap, illustrated in Figs. 16, 17 and 18, isrovided in its entire height with longitudinal (vertical) ribs or foldsc whichhave a twofold purpose first, they render the cap flangeexpansible and contractile within certain limits so that it may fit thereceptacle prop erly notwithstanding variations or inaccuracies in thediameter and form of the neck. Second, these ribs or folds, which in thefinished closure extend across the screw threads of the cap, and projecttherefrom outwardly (Fig. 18) afford a better hold for the fingers ofthe person in unscrewing or otherwise handling the cap. The tongue 9which in this located between two of the ribs 0 and projects entirelybelow the cap flan e to enter a suitable notch may be provi ed with aweakened line m at its upper edge to facilitate breaking off.

It will be understood that vertical ribs or folds such as 0 may be aplied to other forms of screw caps as weli.

One great advanta e of the screw cap a plied as above described is thatit fits t e screw thread of the receptacle with absolute accuracy, evenwhen sald thread is irregular as it unavoidably is when molded. Anordinary screwcap necessarily has its thread form of my invention iswidened when screwed down over a somewhat irregular thread on thebottle, and therefore does not fit perfectly tight. My cap, however, isnot screwed on or turned when it is first applied to the receptacle, andno widening of the thread can occur, but a perfect fit is obtained. Afurther advantage of my invention is the rapidity of the closingoperation, much less time being required to slip the cap into positionand then mold it against the threaded neck than to screw a cap home.Still another advantage is the possibility of using machiner forscrewcapping receptacles; with ordlnary screw-caps this could not bedone efficiently, for the reason that it would be impossible todetermine whether or not the cap was screwed on far enough and therewould be danger of stripping the thread on the cap or breaking thereceptacle if the cap were screwed too far. The longitudinal (vertical)ribs are of advantage in enabling the cap to expand or contract and thusfit necksof different diameters and shapes within certain limits;moreover, as above explained, these ribs afford the user a better holdin unscrewing the cap and screwing it on again. The locking tongueprevents the cap from turning relatively to the bottle during theprocess of molding the cap flange against the threaded neck, as alsoduring transportation, so that the cap cannot be jarred loose. At thesame time, the presence of an uninjured tongue indicates to the consumerthat the rece tacle and contents. are still in their original condition,for in tuming the tongue away from the neck to release the cap, the,tongue is either broken off completely (Fig. 9), or at least.so alteredin ap pearance as to show plainly that it has been tam ered with. Ofcourse, after the cap has een unscrewed, it can be screwed on by handlike an ordinary screw cap for closing the receptacle temporarily, as inthis case the joint need not be so tight as when the bottle is closedfor the first time.

I claim as my invention:

' 1. The combination of a receptacle having a screw thread and a lockingsurface at a different level, with a 'cap provided-with a threadedflange in engagement with said screw thread, said flan e havinglongitudinal ribs on its entire helght extending across its threads, anda tongue rejecting from the edge of said flange and in lockingengagement with said locking surface to keep the ca from turninrelatively to the receptac e, the attache end of the tongue beingconnected with the flange along a weakened line.

2. The combination of areceptacle having a screw thread and a lockingsurface at a different level, with a cap provided with a threaded flangein engagement. with said screw thread, a tongue projecting from thu edgeof said flange and in locking enga ement with said locking surface tokeep t e cap from turnin relatively to the receptacle, and longitu inalribs concaved toward the axis of the receptacle and extending across allthethreads of the cap.

3. The combination of a receptacle having a screw thread and a lockingsurfaceat a different level, with a cap provided with a threaded flangein engagement with said screw thread and a tongue (projecting from theedge of said flange an in locking engagement with said locking surfaceto keep the cap from turning relatively to the receptacle, the'attachedend of the tongue being connected with the flange along a weakened line.

4. A closure cap provided with a threaded I flange which haslongitudinal ribs extending across its threads, and also a tongueadapted for locking engagement with the receptacle, the attached end ofsaid tongue bein izonnected with the flange along a weakene 5. A bottlecap provided with a flange the upper part of which, at least, iscircumferentially continuous, said flange having a screw thread 0 eningout at the bottom thereof, inwar ly concaved longitudinal ribsintersecting all the screw threads and extending the whole height of theflange, and a locking element attached to said flange and adapted to bereadily detached therefrom. y

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses, this 8th day of October, 1907.

ARTHUR VVILZIN.

